perl -e 'print "'ello world\n" or die $!' > file_on_fs_that_is_already_full

I still wonder if that would error if the buffer weren't flushed though. It at least makes it more likely especially as the default also puts an `or die $!` on the close() op. There isn't anything to be done about implicit closes though.

An update. It has been suggested that I patch perl so that failures during implicit closes throw warnings, probably in the 'io' class.

In reply to Re^2: Initial Devel::UncheckedOps, a macro for perl by diotalevi
in thread Initial Devel::UncheckedOps, a macro for perl by diotalevi

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